منابع مشابه
Subjective refraction in eyes with multifocal IOLs.
To the Editor: Piñero et al,1 in the August 2010 issue of the Journal of Refractive Surgery, addressed the complexity of obtaining refraction in eyes that have been implanted with multifocal intraocular lenses (IOLs). It has been shown that automated and wavefront refractors may not yield accurate measurement of residual refractive error for secondary laser vision correction in eyes with multif...
متن کاملThe precision of wavefront refraction compared to subjective refraction and autorefraction.
PURPOSE To determine the precision (repeatability) of several methods of calculating refraction from higher-order wavefront aberration data and to compare these wavefront refractions with lower-order (LO) wavefront refraction, subjective refraction, and autorefraction. METHODS Four clinicians refracted 16 normal participants aged 23.6 +/- 1.2 years, 69% female with an average spherical equiva...
متن کاملCorrelation between Retinoscopy and Monocular and Binocular Subjective Refraction
Purpose: The aim of the study was to investigate if static retinoscopy has a higher correlation with monocular than binocular subjective refraction, and also to see if there is any difference between these results and Mohindra retinoscopy. Methods: Retinoscopy and subjective refraction was performed on 32 adult subjects and the results from 29 of these were analysed. Results: The statistical an...
متن کاملcomparison of subjective refraction, predicted phoropter refraction (ppr) by zywave aberrometer, and final surgical plan used for laser vision correction
purpose: to study the validity and reliability of subjective refraction, predicted phoropter refraction (ppr) measured by zywave aberrometer, and final surgical plan applied for laser vision correction. methods: this prospective study was conducted on 94 myopic or myopic astigmatic eyes (48 patients) who were candidates for refractive surgery in negah eye hospital from april 2012 to july 2012. ...
متن کاملSpherical subjective refraction with a novel 3D virtual reality based system
PURPOSE To conduct a clinical validation of a virtual reality-based experimental system that is able to assess the spherical subjective refraction simplifying the methodology of ocular refraction. METHODS For the agreement assessment, spherical refraction measurements were obtained from 104 eyes of 52 subjects using three different methods: subjectively with the experimental prototype (Subj.E...
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ژورنال
عنوان ژورنال: JAMA: The Journal of the American Medical Association
سال: 1904
ISSN: 0098-7484
DOI: 10.1001/jama.1904.92500270002h